Zeynep Sonmez vs. Coco Gauff — US Open 2026 First-Round Match Report
Zeynep Sonmez could hardly have been handed a less forgiving welcome to the US Open.
The Turkish No. 1 drew Cincinnati champion Coco Gauff, a player arriving in New York with a title behind her and considerably larger ambitions ahead. Yet for a brief stretch in the second set, Sonmez managed to turn what looked like a routine evening into something Gauff actually had to solve.
She broke back, moved ahead 3-2 and forced the No. 4 seed to sharpen up.
Gauff did by saving 3 break points against her serve for 2-4.
The American won four of the final five games to complete a 6-3, 6-4 victory, advancing without ever allowing Sonmez’s brief second-set surge to become a genuine threat to the match.
One Break Gives Gauff the Opening Set
There was little between them through the opening five games.
Gauff held to begin, Sonmez answered, and the set followed serve through 2-2 and 3-2.
Then Gauff made the first move.
She broke Sonmez for 4-2 and consolidated for 5-2, creating the separation she needed without having dominated the opening stages.
Sonmez continued to compete, holding for 5-3, but Gauff served out the set in the next game.
6-3.
It had been a respectable opening from Sonmez. She stayed close for much of the set, but one loose service game was enough against an opponent who offered almost nothing back on her own delivery.
Set 1 at a Glance
- Gauff won her service games at a perfect 5 of 5, while Sonmez managed 3 of 4.
- Gauff won every pressure point, 2 of 2, while Sonmez won none.
- Gauff won 30 of 49 total points, hitting 3 aces to Sonmez’s 0.
Full Set 1 Stats
| Sonmez | Statistic | Gauff |
|---|---|---|
| Set 1 Duration: 0h33m | ||
| 0.58 | Dominance Ratio | 1.71 |
| 5 | Winners | 7 |
| 9 | Unforced Errors | 5 |
| 250 | Serve Rating | 304 |
| 0 | Aces | 3 |
| 0 | Double Faults | 3 |
| 62% (13/21) | 1st Serve % | 54% (15/28) |
| 69% (9/13) | 1st Serve Points Won | 93% (14/15) |
| 44% (4/9) | 2nd Serve Points Won | 57% (8/14) |
| 0% (0/1) | Break Points Saved | – (0/0) |
| 50 | Return Rating | 212 |
| 7% (1/15) | 1st Return Points Won | 31% (4/13) |
| 43% (6/14) | 2nd Return Points Won | 56% (5/9) |
| – (0/0) | Break Points Won | 1/1 |
| 19 | Total Points Won | 30 |
Sonmez Briefly Turns the Second Set Around
Gauff immediately increased the pressure in the second.
She broke in the opening game and held for 2-0, threatening to make the rest of the night rather short.
Sonmez refused to let it drift away.
She held for 2-1 and then produced her best return game of the match, breaking Gauff to level at 2-2. A hold in the following game put the Turkish player ahead 3-2.
For the first time, Gauff had been knocked slightly off her preferred path.
The response was immediate.
She held for 3-3, broke Sonmez for 4-3 and then consolidated to move within one game of victory.
Sonmez held for 5-4, forcing Gauff to serve it out.
The Cincinnati champion did exactly that.
No late detour. No third set.
6-4.
Set 2 at a Glance
- Gauff won 39 of 69 total points to Sonmez’s 30, a comfortable margin.
- Gauff won her return games 2 of 5, while Sonmez managed 1 break.
- Sonmez hit more winners overall, 13 to Gauff’s 11, but committed more unforced errors, 11 to Gauff’s 7.
Full Set 2 Stats
| Sonmez | Statistic | Gauff |
|---|---|---|
| Set 2 Duration: 0h50m | ||
| 0.76 | Dominance Ratio | 1.31 |
| 13 | Winners | 11 |
| 11 | Unforced Errors | 7 |
| 214 | Serve Rating | 286 |
| 0 | Aces | 2 |
| 2 | Double Faults | 0 |
| 52% (16/31) | 1st Serve % | 74% (28/38) |
| 69% (11/16) | 1st Serve Points Won | 57% (16/28) |
| 35% (6/17) | 2nd Serve Points Won | 73% (8/11) |
| 60% (3/5) | Break Points Saved | 80% (4/5) |
| 110 | Return Rating | 176 |
| 43% (12/28) | 1st Return Points Won | 31% (5/16) |
| 27% (3/11) | 2nd Return Points Won | 65% (11/17) |
| 1/5 | Break Points Won | 2/5 |
| 30 | Total Points Won | 39 |
Gauff’s Second Serve Became a Major Difference
The full-match numbers show where Gauff created the clearest separation.
Both women struck 18 winners, but Gauff committed only 12 unforced errors to Sonmez’s 20.
The larger gap came behind the second serve.
Gauff won 16 of 25 second-serve points, or 64 percent. Sonmez won only 10 of 26, leaving her at 38 percent.
That gave Gauff repeated opportunities to attack whenever the first serve missed.
Gauff also served significantly bigger. Her first delivery averaged 180 km/h, compared with Sonmez’s 156 km/h, and she produced five aces while Sonmez had none.
Sonmez generated five break points but converted only one. Gauff created six and took three.
The American finished with a 1.45 dominance ratio and won 69 of the 118 points played.
There were moments when Sonmez made the match competitive.
Across the full evening, Gauff controlled considerably more of it.
Sonmez Gets a Rough Draw After Building Turkish Tennis History
The difficulty of Sonmez’s assignment should not obscure how far she has already come.
The 24-year-old was born in Istanbul and grew up watching the WTA Finals when the event was staged there. She later became a significant figure in Turkish tennis herself, winning her first WTA title in Mérida in 2024. In 2025, she became the first Turkish player in the Open Era to reach the third round of Wimbledon.
That makes drawing Gauff immediately after the American’s Cincinnati triumph particularly unfortunate.
Sonmez still showed enough to make the second set interesting. Her movement kept her competitive in longer exchanges, she was willing to come forward and she won 12 of 18 points at the net.
But she needed a far cleaner serving performance to sustain the pressure.
Against Gauff, the margin was simply too small.
Cincinnati Momentum Survives the First New York Test
Gauff came to the US Open carrying something she had been missing earlier in the year: a trophy.
Her Cincinnati title changed the tone of her hard-court summer, and there was little in this opening match to disturb that momentum.
Sonmez did manage something useful. She broke Gauff once, pushed ahead in the second set and forced the American to respond rather than simply cruise through the night.
Gauff’s answer was four wins in the final five games.
The next question is whether Daria Kasatkina or Paula Badosa can raise the bar higher against Gauff than Turkey’s best player managed to do.
Sonmez gave Gauff enough resistance to make the second set interesting. Whoever comes next will have to do more than that if they want to seriously disturb the Cincinnati champion.
But Gauff has already cleared the first obstacle with her Cincinnati form largely intact.
Zeynep Sonmez found one opening.
Gauff made sure by holding her serve at 2-3 down there was not a second.